Locomotive bed and steam passage



May 17 1927.

w. M. SHEEHAN LOCQMOTIVE' BED AND STEAM PASSAGE Filed April 50. 1926'zlsheets shet 1 Ma 17' 1927 y I w MwSHEEHA N LO'COMOTIVE BED AND STEAMPAS SAGE Filed April 50. 1926 2 Sheets-Sheet 2 Patented May 17, 1927.

UNITED STATES 1,629,316 4 PATENT'OFFICE. -j

WILLIAM M. sIIE HAN, or am. LOUIS, MISSOURI, ass lemon TOCOM MONWEALTHSTEEL column, or GRANITE CITY, ILLINOIS, A CORPORATION on NEW JEnsEY.

oconorIvE BEnAivn STEAM PASSAGE.

Application filed April 30, 1926. Serial No. 105,789.

My invention relates to railway rolling stock and particularly to theconstruction of steam locomotives.

The object of my invention is to form the locomotive bed, steamcylinders, steam-supply chambers, steam exhaust passageways,

and boiler saddle in such manner as to cilitate the construction, and,where necessary, the: assembly of the above-mentioned elements, and alsoto reduce to a minimum 4 the space requirements for these parts: It hasbeen customary to make the abovementionedelements separately and tosecure them together with bolts or rivets, and vfrequently it is verydifiicult to get at the parts which receive the securing means becauseof the slight clearances between adjacent por-' tions of the elementsbeing assembled. It is therefore necessary to increase thedistancebetween the adjacent parts so as to provide the necessary spacefor workmen.

, to operate, or to provide additional flanges :or' other (surfaces forattaching purposes. By forming two or more of the parts men- 5 .tionedintegrally, I avoid these difliculties and secure a lighter and strongerstructure for a given amount of material than is possible with built-upstructures.

A detail object of my invention is to pro- 30 ,'vide one or more steampassageways from the cylinders through the side wall of the locomotivebed and this permits a desirable increase in the depth of the side frameand is particularly adapted for embodiment in a 5 cast bed. 7

In the accompanying drawings which illustrate various forms ofmyinvention- Figure 1 is a top view of one-half of the forward end ofajlocomotive bed with the Y 0 saddle, steam cylinders, steam supplychamber, and exhaust steam passageways I all formed integrally. It willbe understood that the complete structure includes a lefthand duplicateof the arts shown, the same 5 being formed integral y with the righthandhalf illustrated.

Figure 2 is a front-elevation of the structure shown in Figure 1.

Fi res 3 and 4 illustrate amodification 0 in w ich the bed and innerportion of the exhaust steam passageways and boiler saddle are formedinte ally and the cylinder, steam sulgy of 'the e aust steam t formedintegrally with each ot er but sepwill be understood that the fearportion of vlded for'reinforcing'. the chamber and cylcham er, and outerportion passageways are arate from the bed, saddle, and inner portionsof the passageways, Figure 3 being a,

' vertical section on line 3 3 of Figure 4, and

Figure 4 being a horizontal section 4-4 of Figure 3.

Figures 5' and 6 illustrate another modification of my invention in'which'Figure 5 is a topview of a cast unit comprising a cylinder andsteam supply chamber and exhaust steam passageway and one-half of theboiler saddle, all formed integrally and adapted to be bolted orotherwise secured to a corresponding unit duplicating that illustrated.Figure'G is a front elevation of the structure shown in Fi re 5. a

Figures 7 and 8 illustrate another, modification of my invention inwhich the cylinder and steam supply chamber and theouter on line portionof the exhaust passageways are not formed as one unit .but are adaptedto be mounted upon the adjacent side wall of the locomotive bed whichincludes as integral portions the exhaust steam passageways.

'In the embodiment of my. invention lllllS- trated in Figures 1 and2,-one side wallof the locomotive bed is indicated at 1, the sameterminating at the'forward end in the cross .member 2 upon which thepilot or other end structure (not shown) may be mounted. It

the bed forms no part of mypresent inventionand may have "any des1redform and .include as integral parts driver pedestals,

valve gear brackets," brake hanger fulcrums, equalizer lugs,-boilersupport lugs, and other brackets and parts usually provided, eitherintegrally or separately on locomotive frames. p

v Spaced a short distance from the front end, of the bed and elevatedabove the side wall is a curved boiler saddle forming pprtion 3.Projecting outwardly from the side wall '1 are the" steam supply chamber4 and cylinder '5,there being suitable r1bs6 proinder'body ortions andforming their con-' nections wit the bed. 1

The chamber and cylinder-are located substantially on the same level asthe side wall land suitable exhaust steam passageways extendhorizontally from the ends of the steam sup 1y chamber inwardlytothe'side v wall and 2mm the side wall inwardly and upwardly to an exhaustoutlet 7 in the .cen- I tral. po tion of the boiler saddle 8.- The outerportions 8 of these passagewa s preferably converge toward each otherrom the end of the chamber and the inner portions 9 of these passagewaysmerge before the; upwardly curved portions reach the common outlet 7.

The upper portion of the steam supply chamber 1 is provided with aflange nipple 10 by which the chamber may be connected to a suitablesteam supply line 11.

All of the above-mentioned parts are formedintegrally, preferably in aone-piece steel casting, and by means of suchconstruction a rigid,compact, efiicient structure is provided in which'all of the parts arepermanently assembled and the labor and other cxpense'in connection withassembling operation is eliminated and the necess'ty of inspection andadjustment for thepilrpose of maintaining proper assembly of the partsis eliminated.

In the modification illustrated in Figures 3 and 4, the locomotive bedside wall 12 has the inner portions 13 0f\ the exhaust steam passagewaysformed integrally therewith and also has the boiler saddle 14.with itssteam outlet 15 formed integrally. 'In this structure, however, thesteam supply chamber 16,cylinder 17, and the. outer portions 18 ofexhaust steam passageways are formed integrally in a'unithaving flanges19 adapted to be mounted upon finished pads formed on the outside of theside wall 12.

With this structure the steam supply chamber and cylinder may be moreconveniently handled for the necessary machining and similar advantagesmay give preference to this type of structure in some cases.

In the modification shown in Figures 5 and 6, one-half of the boilersaddle and the adjacent bed side wall 20, steam cylinder 21, steamsupply chamber 22, and exhaust passageways 23 are formed in one unit andprovided with suitable flanges 24 for attachside of the locomotive.

ment to a corresponding unit on the other The passageways 28, however,are integral from end to end and with each other..

In the modification illustrated in Figures 7 and 8 the steam supplychamber 26 and cylinder 27 are formed separately from the bed 28 and areapplied thereto similarly to the application indicated in Figures 3 and4, but in this modification the outer portion 29 of" the exhaustpassageways are formed separately from the cylinder and chamber and fromthe locomotive bed and are connected thereto by suitable elements 30. Inthis structure, however, the passageway leads through the side wall ofthe bed similarly to the corresponding features in the other forms of myinvention. The inner passageways 31 are formed integrally with the bed28 and these inner passageway ortions are of a somewhat different shapeom' passageways 9, 13, and 23 in the other forms of my invention due tothe different location of the passage through the side wall of the bed.

Various other modifications of my invention may be made withoutdeparting from the spirit thereof which contemplates the use of alocomotive bed having side walls provided with passageways for theexhaust steam from the cylinders leading from the end of the steamsupply chambers through the bed side wall to an exhaust outlet locatedbetween the side walls. I contemplate the exclusive use of all suchmodifications as are included in the scope of my claims.

I claim:

1'. In combination, a locomotive bed, a boiler saddle with a centrallylocated exhaust steam outlet, a steam supply chamber, and an exhauststeam passage extending db rectly from the end of said chamberdiagonally through a side wall of said bed to a point beneath saidoutlet. v

2..In combination, a locomotive bed, a boiler saddle with a centrallylocated exhaust steam outlet, a steam supply chamber, and steampassageways extending directly from each end of said chamber diagonallythrough aside wall of said bed and toward each other to a point beneathsaid outlet.

3. A one-piece casting comprising a locomotive bed side wall and acylinder exhaust steam passageway formed integrally with.

said wall and extending laterally on both sides of the same. I

I 4:.- A one-piece casting comprising a locomotive bed, a boiler saddlewith an exhaust steam outlet, and exhaust steam passagewaysextendingdiagonally through the side walls of said bed to said outlet. v

5. A one-piece casting comprisinga locomotive bed and a plurality ofcylinder exhaust steam passageways extending diagonally through each ofthe side walls of said bed toward an exhaust outlet between said walls.

6. A one-piece casting comprising a loco- 4 motive bed and a pluralityof cylinder exhaust steam passageways extending diagonally through eachof the side walls of said .bed toward an exhaust outlet between saidwalls, said passageways merging with each other beneath said outlet.

7. A one-piece casting comprising a locomotive bed with side walls,steam supply chambers formed integrally with each of said walls,individual. exhaust steam passageways extending laterally from saidchambers through said walls and united with each other between saidwalls.

8. A one piece casting comprising a 1000- motive bed with side walls, anindividual steam supply. chamber formed integrally 'with each ofsaid'walls, a plurality of exhaust steam passageways extending from eachof said chambers through the respective walls and toward each other andunited with each other intermediate said walls.

9. In combination, a locomotive bed, a steam supply chamber, and a steampassage- .way extending transversely from the end of said chamberthrough a side wall of S'aldfl bed.

' 10. In combination, a locomotive bed, a steam supply chamber, and asteam passageway extending transversely from, the end of said chamberthrough a side wall-of said bed and passing through said side Wall at apoint intermediate the ends of said chamber.

11. In combination, a locomotiven bed, a'

steam supply chamber, and steam' passageways extending transversely fromboth ends of said chamber through a-sidewall of said bed.

12. In combination, a locomotive bed, a steam supply chamber, and steampassageways extending transversely from both endsof said chamber.through a side wall of said bed and passing through said side wall atpoints intermediate the ends of said chamher and merging with eachother. I

13. In combination, a locomotive bed, and a steam supply chamber formedintegrally with said bed, there bein a steam passageway extendingtransverse y from the end of said chamber through a side wall of said 1bed to an exhaust ort located intermediate 7 I the side walls of saidbed.

14. In combination, a'locomotive bed, and a steam supply chamber formedintegrally with said bed, there being steam passageways extendingtransversely from both ends of said ehamber'through a side wall of saidbed to a common exhaust port located i/nte'rmediate the side walls ofsaid bed, the portions of said passageways between said walls beingformed integrally therewith.

15. In combination, a locomotive bed, a

boiler saddle with a centrallylocated. ex-

haust steam outlet, a steam suppl chamber, and a; steam passagewayextendi versely from the end of said chamber and passing through theside-walls of said bed intermediate the ends of said chamber to saidoutlet.

16. A one-piece casting comprising a locomotive bed, a boiler saddlewlth a centrally located exhaust steam outlet, a steam supplyng trans

